DAWN raids on to crack down on gang and youth violence in North Paddington and Maida Vale saw several people arrested.
Police swooped in on addresses in and around Harrow Road at 5am on Thursday(11), targeting drug dealers and gang members suspected of carrying weapons.
Following the raids in the W9 postcode, officers recovered £8,000 in cash, more than 1.5kg of cannabis, wraps of cocaine and a firearm.
Three people were charged with firearms offences, four people were charged with drugs offences and one was charged with handling stolen goods.
A series of raids were carried out across London under Operation Blunt 2, the Met police's drive to combat knife crime and other serious youth violence.
More than 140 were arrested across the capital during the intelligence-led operation.
Chief Inspector Hackett, leading the Westminster operation, said: "These arrests highlight our determination that gang-related activity and youth violence within Westminster will not be tolerated.
Commander Mark Simmons, head of Operation Blunt 2, added: "We know that street gangs often play a part in violent attacks on young people.
"Individuals affiliated to gangs are cowardly, acting in packs and using weapons to target and intimidate others.
"Clearly this is a cause of considerable public concern and the Met has been working hard over the last year to tackle the issue.
"Through intelligence, we've identified the individuals we believe are causing the greatest amount of harm. We've targeted a number of gangs intent upon causing misery."
* Caroline Hickey, 47, of W9, and Bernard Vaughan, 50, of W9, were both charged with possession with intent to supply a firearm, while a 17-year-old boy was charged with possession of a firearm.
Ashley Hickey, 22, of W9; Mark McFadden, 35, of SW1; and Ben Kusah, 20, of London, were charged with possession of class B drugs, and Alistair Walsh, 38, of SW1V, was charged with possession with intent to supply class B drugs.
Gideon Butler, 45, of W9, was charged with handling stolen goods.